Self-lubricating dttstproof sewing machine



Sept. 9

P. sTElNaocK SELF LUBRICATING DUSTPROOF SEWING MACH'HP Original Filedllay 26. 7 Sheets--x,eet l tom/leg Sept. 9 1924.

v P. s'Tr-:INBocK SELF LUBRICATING DUSTPROOF SEWING MACHINE origina;Find nay 25 1920 'l' sheets met 2 'a www 4 gvweutoz Y Psw/P frf//yac/r351# bten/m Sept. 9, |924. n R, 15,915

l P. srElNaocK SELF LUBRICATING DUSTPROOF SEWING MACHINE Original FiledHay 25A '1920 7 Sheets-Sheet l5 Sept. 9, 1924.- Re; 15,915 P. STEINBOCKSELF LUBRCATING DUSTPROOF SEWING MACHINE Original Filed Ilay 25, 1920 7Sheets-Sheet 4- Sepns. |924. ,x f Re. 15,915

I P. STEINBCK SELF LUBRICATING DUSTPROOF SEWING MACHINE 'Original nud nu25, :92o 'r sheets-sheets @gw l www Sept. 9. 1924.

P. STEINBOCK y SELF LUBRICATING DUSTPBOOF SEWING CHINE Original Filedlay 25.. 1920 7 Sheets-Sheet 6 x x x gnvautoz P. STEINBOCK SELF'LUBRICATING DUSTPROOF SEWING IACHINB- Sept. 9

Original Filed Bjr 254.

1920 Y v sheets-smet' 7 .1 WNJU! NIH Ih IH. H NIMH .5%. ,s .m .wWWWWMmReiseued Sept. 1924.

UNITED STATES PATENT oFEicE.

PHILIP STEINBOCK, F.A MI'1 YVIILE, NEWYORK, ABSIGNOB T0 STEINBO SEWINGMACHINE CORPORATION, 0F NEW YORK, N. Y., A CORPORATION' 0F NEW YORK.

SELE-LUBBICATING DSTPBOOF origini iro. 1,sso,12o, ima any si, i921, semino. semanales my 25,-1eao. appn'mion for reissue tiled `lay, 1923.4Serial lo. 641,025.

To all whom 'it muy comem':

Be it known that I, PHILIP STEINBOCK, a citizen of the United States,formerly residing;r at New York, county and Stateof NewYork,.and nowresiding at'Amityville'` Long Island, county of Suffolk, and State ofNew York, have invented certain new and useful Improvements inSelf-Lubricat ing Dustpioof Sewing Machines, of which the followingisa'specilicatio. A

' This invention relates to improvements in self-lubricating, dustproofsewing ina-V chines, particularly machines for sewing stra-w plait forstraw hats, and for similar Q mi tak'en .along line 6-6 of Fig. 5.

l5 purposes.

It is the principal object of the invention to rovide means whereby thebearings of suc machines,which are usually speed power driven machines,are automatical or i self-lubricating for along period, for in,-

stance for several da or weeks depending upon the amount o f ubricantstored in the machine. Y

Another obj'eetof the machine is the provision of means'forautomaticallyoiling es ially quickmovng parts, which could noltecbeoiled by direct' application of the lubricant without the danger ofsplashing the oil, by means of oil-soaked cotton or s0 waste wicks, orso-called fuses saturated with the lubricant. l.

A further object of the invention consists in provi a machine of thecharacter specified Ywhich can be oiled by anyone or 85 rather .which isself-oiling and needsV only the attendance of unskilled labor tov effectits lubrication, thus saving expenses for skilled labor. l g

Other features of-myjimpro-ved machine will become .apparent as v'theldescription thereof proceeds and will 'be more fully' set forthhereinafter.

vention.

y i ,v cup 14 is provided on the side of the frame With theseand other',objects in view my provided on-the shaft 12,.between the wall of ing anyof the advantages of thev ,inf 4 1 Y v V anyleakingl'of the lubricanttoward the outfy In the accompanying drew' Figurel is a front elevationof my self lubricating sewing machine constructed accoi-ding to thepresent invention.

2 is a top plan view thereof, taken along line 2-2.'of 1g. 1. Y Fig. 3is an end view of the U 'right end wall removed,'t he section of theshaft being taken along line 3 3 of Y1.

Fig.- 4 is another end view of the mac scenfrom` the left Fig. 1.

Fig. 5 is a top plan view` partly in section along line v5.--5 o F' 1.

Fig. 6 is a section view, the section beig. 7 is a sectional view, thesection beino taken along line '7 7 of 5.

Fig; Sis a detail view of a feed bar.

Fig. 9 is a detail view of the parts 'used for assembling the feedbarshown in Fig. 8.

Fig. 10 is a top lan view of the frame after removal of t e cover andmachine 7 5 parts, the oil chamber'for'the presser and needle bars beingshown in section.

Fig. 11 shows, in detail views, the housings for the Veccentric andshaft.

f 12 is` a vsectional view,\the section. being takenV on the line l2-12of Fig. 10.

. Fig. 13 is a detail view of one of the wick holders. l

Fig. 14 a frontsectional view of the machine, the section being ,takenon line 14..-14 of Fig. 2. Y v-Corresponding parts in theseveral-figures of the drawingsV are designated by 'like characters ofrefellelee.

The'machine frame 10 is provided at Vone of. its with the customary'operating wheel 11, secured to an operating shaft 12 and integrallymade with abelt'pulley 13 on its inner face. (See Figs. 1 2 and 14.) A

move, upon rotation of the shaft L2.A The 100 cup 14 is entirely clodagainst the intrusion ofv dust and to prevent the escape of thesplashing of oil. A washer 17 is preferably cup 14 and pulley 13, 1norder to prevent 105 1 and 4), to an side of the cup, at the place wherethe shaft 12 entersV the cup or chamber 14.-

The pitman 16 and 'its connections are incased in av dust proof casing18 which is re. movably secured to the chamber 14.. The casin 18 isclosed at the top by a plate 19,

Icarrying the tensioning-device 20 and thread Within the casing 18 theupper end of the pitman 16 is pivotally secured, by the customary wellknown split bearing 22, .to the inner end of the rocker arm 23, (seeFig.

This split bearing 22 has, in its upper edge, an opening for thereception of one l end of awick 24, the other end of .which is untwistedas at 25, (Fig. 14) andv depends into an oil chamber 26, an eye 27 beingproF vided on `the side of therocker 'arm 23 to hold and guide the wick.The rocker arm 23 is provided with a suitable bearing, and is adapted torock on a xed rod or shaft 28 passing transversely through `the chamber26, and through the bore in said rocker arm, f and having its endsextended through the@ walls of Vthe chamber on both sides. The

`front' and vrear walls of the casing 10 (charri ber 26) are eachprovided with a hole or bore, larger than the shaft 28, in whichI anannulus or sleeve 29 is mounted on the shaft 28, the. sleeves fittingsnugly in the sockets or bores in bosses 30, projecting from each wall,one of said bosses being extended and shaped on one side with anlnnercavity to provide an oil gage 31. From the shaft 28,

(see Fig, 14) there extends, through a hole in the bearing of the rockerarm 23, an oil supplyin wick 32, one end of which engages said sha t,while the other, untwisted and branched end 33, ext'ends into the oilreservoir 26, the wick ,being held intermediate its j ends to the rockerarm4 23 'by meansof a -p screw 34.

The rocker-arm 23 is provided at its upper edge, intermediate its ends,witha thread guiding eyev35A and the front (or left) end of the arm 23is pivotally attached, in the ordinary well known manner, as at 36(Figs. l operatin block 37 secured at ,38 to the movab e'need e bar '39,intermediate the endsthereof. The needle bar is provided, at its u perend, with an eye 40 for the passage o the thread which 1s guided -fromtheeye 35 to a guide 35 and is then guided through a slot 41 of abracket 42 secured to the side of an oil cup or reservoir 43. The`thread finally passes through a guide 44 on the end .of framelO to theneedle 45 .secured in the lower end of the needle bar, inthe .customarywell known manner.

A thread tensioning device 46 has an ini `ner projection 47 pressing thefree end of a spring 48 against the thread, guided through the slot 41ofthe bracket 42, while 'the adjustable piece of the rod 49, as bestseen in Fig. 2.

The `free outer end of the rod 49 is passed through the oil reservoir 43into engagementywith' sprin 48.

Asshown in ig. 10 the oil cup 43 has an innerfoil receptacle 53,extending laterally froiifga block 54, formed integrally with the upperlforward end of the overhanging arm ,of tliejframe 10, and is providedwith as-I "(or the needle bartand the presser ar. flock 54-is providedrwith'ducts or holes 5,5,"tiommunicatmg from the oil receptacle`5j3`jwith the passages for the. needle and presser bars, for thereception of wicks 56,

57,*which are adapted to supply said needle and presserbars with oil.

The presser bar is designated at 58 and stands, Vas customary, under thetension of a spring, not shown, Within the frame 10, the tension ofwhich can be regulated by means of a screw 59 (Fig. 4), while the lifter60 engages, with its upper shoulder, a pin v61 on the -presser bar.

The presser bar carried, at its lower end. a yfoot 62, engaging, withits curved and forked rear end, a groove of the presser bar,

the lower end of which carries a nut 63,

holding the foot, with its curved part, to the resser bar.

The front part of the foot 62 is cut away to provide a passage for theneedle 45, while a-regulating screw 64, adapted to regulate the plaitguard, can be locked in its adjusted position by means of a lever 65.

'The throat 'plate 66 is provided with an opening for the passage of theneedle, and

'underneath this opening, there is provided 'a lower, stitch -formingdevice 67 (Fig.

5), having a cavity 68, for clearing the needle, the device 67 beingsecured to the outer, free end of the Shaft 12; which is supported in abearing 69.

In an opening in the throat plate 66,

`underneath and below the presser foot 62, 'a feedingvdevice 70 islarranged, which can be raised and lowered against the presser foot bymeans of an adjusting screw 61 (Figs. v8` and 9)', whichis adapted toraise and lower a carrier plate '72, to which the feeding device 70 issecured by a screw 73. A screw 74 and plate 75 are provided for As shownin' Fi securing the entire adjustable feeding de-Iv lingrod 103 ispivotally: connected with the 65 vice, when the parts shown in Fig. 9are assembled, as shown in Fig.` 8, to the outer end of the feed bar arm76; the latter having a U-shaped member 77, adapted to staddle the sidewall 78 (Fig.14) of a casing or box 79, forming an oil reservoir,adapted to be filled with oil, and closed on top by a cover 80,secured,lupon tlie'side and end walls thereof, by means of screws` 81(Fi 2). Within this reservoir, the stradd e member 77 of the feed bar ismade in al with a vibrating arin 82, the forked end of which engages aneccentric'oiithe drive shaft 12. The feed bar, comprising the arm 76,member 77 .and arm 82, is providedyvith a lateral bracket arm 83,pivotally secured to the upper end of a rock frame pivoted at lthebottom of the reservoir 79, as more particularly described hereinafter.

A plait'guide and regulator of 'well known construction, generallyindicatedfat 84, is provided att e) front part of the machine and conirises a .slid` index` plate 85 provided with a longitudinal slot 86,through which the stem of an index finger 87 extends, the latter besecured tothe casing or frontwall 88 of t oil reservoir 79, by a screwwhich holds the index plate -in frictional engagement with the wal1v88.A guide arm 89, extending from an ear on the index iin 87, is providedfor' guiding the plait an holding the material against the plait guidingplate 9 0, .the latter being part of the index plate 85. The low er partof the plate 85 is'provided with teeth 91 adapted to be enga by theteeth of a gear 93,

on the'shaft o an operatin knob 92, adaptedto dis lace the index p ate,in order to regulate t 'e distance pf the rows of stitches on eachplait. e i Y The front plate 88 of the o'il reservoir 79 is providedwith an oil ag'e 94, to indicate the level of the oil within thereservoir 79.

.'12, 13 and 14,' wick holders are provided, ,at the bottomzlof thereservoir 79, in which wicks96 are held, by springs 97, with their upperends -in engage- 'ment with the shaft 12, in order to permanently supplyoil tothe 'same' if the level of the oilcontained within the reservoir79 has sunk below the level of said shaft.

Intermediate their ends the presser bar 58 l and the needle bar 39 areguided thmugh an oil receptacle 98 (Fig. 4)- provided with front andrear' cu 99.

' As shown in Fi 5 and 6, the oil" reservoir 79 contains t e actuatingdevices for` the` feed bar, including the` bracket arm or irame 83,which is pivotally supported on a rodor shaft 101', atthe up r end of arock frame 102 adapted tvroc on a shaft 100, located near the bottom ofthev oil reservoir 79' (Fig. 6). -'One end of a Aconnect- `rock frame102,-the othered thereof bei carried on an eccentric sleeve104, s ecurto theshaft 12. '.=.The coniiectiiig'gf.rod 103 is 'piiovided with`lrlsuitable openings to? Vreceive 'lli'e operation of theoilinglfeatures of the nachine may.be briefly ysummarized as folows:- va -v i When' the power shaft 12. is rotated, the eccentric- 15 in theoilA cup orwell 14 is lubricated by the oil'jtherein, while theconnecting'bearing between the pitman 16 and the rock arii'i 23 is.lubricated by a .wick

supplying oil. to the. bearing'in the box 22,

the oil being conducted thereto through the wick by 'capillary action,from a well or oil cup locatedbelow the level of the bearing. 'Similarly.the 'bearing of the rocker arm 23 on the shaft 29 lubricated bcapillary actionA of the oil *r' from e oil well-- or cu 26 through -awie The for' \the ft 12 are'lubricated by oil from the reservoir 79located in thebose of the machine, wicks provided for ca o the oil tothe beaiiin When'the leveltliereof .in the reservoir is be ow the shaft.'The r'eservoir 79, which, as. shown in the drawings,

extends to. the. rear of the machine, encloses e theeccentricsandactuatingmechanisms for the feed-bar, which, whenthereservoir is Y nearly filled with oil, are nearly completely submerged.Whenl these parts are operated bythe' rotationV of thejshaft y12, thes`1asl`i of the oil will be suicientto thorough y lubricate all ofthe'moving parts. vThe cover plate -80 for the reservoir 79 prevents thesplashing oil from esca-ping from thereser- Having thus described myinvention, what- -chamber rand means for guiding said wick vinterme iateits ends.

, 2. In asewing machine of the character described, the combination withan oil containin passel transversely through said reservoir and on whichsaidarm is pivoted, said shaft having its ends extended throughthe'walls of the reservoir on both sides thereof, anda sleeve on .eachend "ofsaid shaft, and .a` .""pr'o" reservoir, 'of a rocker arm, a.shaft jecting portion ofthe wall of the reservoirw adjlgcent one ofsaid-sleeves provided with a 4sig t opemn'grand constitut an oil gagefor indicating the'level of the oil'within said reservoir. v

3.' Ina sewing machine of the character described, the combination withan oil con,-A

taining reservoir, of a'rocker arm, a shaft 'passing transverselyrthrough said reservoir on which said arm 1s pivoted, a wickengagthereof.

needle bars.

ing said transverse shaft and extending Into the oil within saidreservoir, and means for guiding said wick intermediate (the ends voftheneedle and presser bars, said block -being provided with channelslconnectin said cup with the ypassages yof the needle an presser barsand wicks in said cup entering saidcha'nnels for engaging said presserand 5. In a'sewing'machiine of the character described, the combinationof an oil reserv voirformin part of the machine casing, an operating saft of the machinepassed through. said oilreservoir,`. rocker elementsconnected with said shaft and located withinV said reservoir, a fabricfeeding device, means connecting said :rocker elements with said.feeding device, and an oil gage in the front wall of said reservoir,for indicating the level'of the oil contained therein.V c y '6. In asewing machine of the character described, the combination of anoilreserdescribed, ther combination with av main voir,anoperating shaftpassed through said reservoir,a'plurality of wick holders at the bottom4of said reservoir, sprin in said holders, and -wicks held in saldsprings adapted to engage said shaft with their upper free ends forlubricat the same even if the oil level" within sai reservoir has fallenbelow said shaft.

7. In asewingmachine of the character described, the combination withthe frame of the machine, of needle and presser bars,

an oil receptacle intermediate the ends of y Ysaid needle and presserbars,"and oil cu s at the front and rear ends `of said receptac e. 8. Ina'sewing machine of the character described, Athe combination with .amain frame provided with anv overhanging arm and a base member, of an4oil reservoir formed in the-base Vof said frame, a-man shaft passingthrough said reservoir, bear# ingsin the walls of said'reservoir forsaid shaft, and means for oiling said. bearings from' the oil'in saidreservoir, said means inshaft. l 9. In a sewing machine ofthe `characterervoir.

pivot.

described, the combination with a main frame, provided with anoverhanging-arm and a base member extending laterally below said arm, ofan oil reservoir 'formed in the base. of said frame below said arm, saidreservoi'r extending rearwardly, a main operating shaft passing throughsaid reservoir at rock frame, eccentrics mounted on sai shaft foractuating said'feed bar, all of said parts being located within saidreservoir and adapted to be lubricated by the oil therein,

'and a removable cover' plate for said reservoir adapted to permitaccess thereto'and for 75 preventing oil from splashing out of the res-10. In a sewing machine of the character described, the combination witha main\` frame, provided with an overhanging arm and a base member, of arocker arm pivotally mounted on said frame and extendin parallel withsaid overhanging ar'm, an oi 'well located below therocker arm pivot andwithin the frame and a wick of orous material for. conducting oil bycapi ary action upward fromthe well for lubricatmg said I 11. In asewlng machine of the character' frame, provided with an overhanging armand a baseV member, of a rocker arm' piv.-

otally mounted on said -main frame, a pitman pivotallyconnected with theend of said rocker arm, al1 oil well located below' said rocker arm, anda wick of porous material for conducting oil by capillary action from vI and a base memberfof a rocker arm pivot ally mounted on said mainframe, a driving shaft extending through said -base member and providedwith an eccentric, a ptmanI extendlng from said eccentric upward andpivtally connected with'said Vrocker arm, an oil 'cupl enclosing thelowerend of the pitman and said eccentric'for lubricating the same, anda casing enclosing said pitman cludn wicks for conducting oil tothebear-I ings w en theflevel oftheoil is below lsaid from.

PHILIP STEINBOCK.

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